package com.seafood.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

import java.util.Arrays;

/**
 * 应用配置类
 */
@Configuration
public class AppConfig {
    
    /**
     * 密码编码器
     */
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
    
    /**
     * CORS配置
     */
    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration configuration = new CorsConfiguration();
        
        // 允许的域名
        configuration.setAllowedOriginPatterns(Arrays.asList("*"));
        
        // 允许的HTTP方法
        configuration.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE", "OPTIONS"));
        
        // 允许的请求头
        configuration.setAllowedHeaders(Arrays.asList("*"));
        
        // 是否允许携带凭证
        configuration.setAllowCredentials(true);
        
        // 预检请求缓存时间
        configuration.setMaxAge(3600L);
        
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", configuration);
        
        return source;
    }
}